18030315018 has 16 divisors (see below), whose sum is σ = 36102718080. Its totient is φ = 6003090336.

The previous prime is 18030314999. The next prime is 18030315049. The reversal of 18030315018 is 81051303081.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1748098 + ... + 1758381.

It is an arithmetic number, because the mean of its divisors is an integer number (2256419880).

Almost surely, 2^18030315018 is an apocalyptic number.

18030315018 is an abundant number, since it is smaller than the sum of its proper divisors (18072403062).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18030315018 is a wasteful number, since it uses less digits than its factorization.

18030315018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3507341.

The product of its (nonzero) digits is 2880, while the sum is 30.

Adding to 18030315018 its reverse (81051303081), we get a palindrome (99081618099).

The spelling of 18030315018 in words is "eighteen billion, thirty million, three hundred fifteen thousand, eighteen".